[Blink>MediaSession] Use setActionCallback() instead of event listeners for media control actions

third_party/WebKit/LayoutTests/media/mediasession/mojo/media-control-set-handler-notifies-service.html

Index: third_party/WebKit/LayoutTests/media/mediasession/mojo/media-control-set-handler-notifies-service.html
diff --git a/third_party/WebKit/LayoutTests/media/mediasession/mojo/media-control-set-handler-notifies-service.html b/third_party/WebKit/LayoutTests/media/mediasession/mojo/media-control-set-handler-notifies-service.html
index 16752a98afe740fad47c0937399564c817a65bb4..d01c2fc0629be08dee0a56b89497db9ceed5d945 100644
--- a/third_party/WebKit/LayoutTests/media/mediasession/mojo/media-control-set-handler-notifies-service.html
+++ b/third_party/WebKit/LayoutTests/media/mediasession/mojo/media-control-set-handler-notifies-service.html
@@ -56,31 +56,31 @@ async_test(function(t) {
     }));
 
     // Setting handlers
-    window.navigator.mediaSession.onresize = _ => {};  // Unknown event.
-    window.navigator.mediaSession.onplay = _ => {};
-    window.navigator.mediaSession.onpause = _ => {};
-    window.navigator.mediaSession.onprevioustrack = _ => {};
-    window.navigator.mediaSession.onnexttrack = _ => {};
-    window.navigator.mediaSession.onseekbackward = _ => {};
-    window.navigator.mediaSession.onseekforward = _ => {};
+    // window.navigator.mediaSession.setActionCallback("resize", _ => {});  // Unknown event.
+    window.navigator.mediaSession.setActionCallback("play", _ => {});
+    window.navigator.mediaSession.setActionCallback("pause", _ => {});
+    window.navigator.mediaSession.setActionCallback("previoustrack", _ => {});
+    window.navigator.mediaSession.setActionCallback("nexttrack", _ => {});
+    window.navigator.mediaSession.setActionCallback("seekbackward", _ => {});
+    window.navigator.mediaSession.setActionCallback("seekforward", _ => {});
 
     // Resetting handlers
-    window.navigator.mediaSession.onresize = _ => {};  // Unknown event.
-    window.navigator.mediaSession.onplay = _ => {};
-    window.navigator.mediaSession.onpause = _ => {};
-    window.navigator.mediaSession.onprevioustrack = _ => {};
-    window.navigator.mediaSession.onnexttrack = _ => {};
-    window.navigator.mediaSession.onseekbackward = _ => {};
-    window.navigator.mediaSession.onseekforward = _ => {};
+    // window.navigator.mediaSession.setActionCallback("resize", _ => {});  // Unknown event.
+    window.navigator.mediaSession.setActionCallback("play", _ => {});
+    window.navigator.mediaSession.setActionCallback("pause", _ => {});
+    window.navigator.mediaSession.setActionCallback("previoustrack", _ => {});
+    window.navigator.mediaSession.setActionCallback("nexttrack", _ => {});
+    window.navigator.mediaSession.setActionCallback("seekbackward", _ => {});
+    window.navigator.mediaSession.setActionCallback("seekforward", _ => {});
 
     // Unsetting handlers
-    window.navigator.mediaSession.onresize = null;  // Unknown event.
-    window.navigator.mediaSession.onplay = null;
-    window.navigator.mediaSession.onpause = null;
-    window.navigator.mediaSession.onprevioustrack = null;
-    window.navigator.mediaSession.onnexttrack = null;
-    window.navigator.mediaSession.onseekbackward = null;
-    window.navigator.mediaSession.onseekforward = null;
+    // window.navigator.mediaSession.setActionCallback("resize", null);  // Unknown event.
+    window.navigator.mediaSession.setActionCallback("play", null);
+    window.navigator.mediaSession.setActionCallback("pause", null);
+    window.navigator.mediaSession.setActionCallback("previoustrack", null);
+    window.navigator.mediaSession.setActionCallback("nexttrack", null);
+    window.navigator.mediaSession.setActionCallback("seekbackward", null);
+    window.navigator.mediaSession.setActionCallback("seekforward", null);
   });
 }, "test that setting event handler notifies the mojo service");